Photo request: '68 rear speaker fader on rally dash

I had a set up that I sold awhile back, the knob looked a lot like the knobs on the radio and it had a chromed pot metal bezel that said "Rear Speaker". it was designed to go into the underside of the dash frame where it rolls over, much like the "rear air" and map light switches. If you want a picture or want to buy the set up that I sold, let me know and I can contact the parts seller I sold it to and see if he still has it.